Tim Hortons

I went to the drive thru this morning on my way to work and ordered a large 1/2 cream coffee, when I got to the window she tried to hand me a medium coffee, so i said no i ordered a large so she took the coffee back and got another one ready, she handed me a large coffe and i assumed it was a large 1/2 cream but I got to work to find out it is a large with at least 2 cream in it if not more. I am very unhappy as this was my morning coffee and now i can't drink it as it has too much cream in it.